A method of sealing the opening of a prefabricated exterior wall

Abstract

The invention relates to the technical field of building construction, and in particular to a method for sealing a hole in a prefabricated outer wall, comprising the following steps: step 1, opening a accommodating cavity above the hole in the wall; The first extruded board and the second extruded board are arranged in the holes of the board and the outer board; step 3, a first template is set on the outer side of the outer board to fix the second extruded board, and a second template is set on the inner side of the wall To seal the hole of the wall; Step 4, pour concrete into the hole of the wall; Step 5, remove the second formwork, the first formwork, the screw and the second extruded board; Step 6, seal the hole of the outer plate Block the cement mortar; Step 7, apply waterproof paint on the outer plate. In the present invention, concrete is poured in the hole of the wall body, cement mortar is sealed in the hole of the outer plate, and the first extruded plastic board in the hole of the insulation board is matched to form a sealing structure with a thermal insulation layer, so as to avoid the occurrence of cold bridges at the hole. , improve thermal insulation performance and waterproof quality.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a method for plugging an opening of a prefabricated outer wall. Background technique [0002] In the construction process of high-rise shear wall structure, the erection of scaffolding generally chooses the cantilevering method. During the erection of the cantilevered scaffolding, the cantilevered steel beam openings must be left in the shear wall, while the prefabricated outer wall is a set of shears. It is a wall structure that integrates the strength wall, the thermal insulation board and the outer plate. Therefore, there are certain difficulties in how to block and repair the external thermal insulation structure for the holes left in the prefabricated outer wall. The existing method is to directly seal the entire hole with fine stone concrete, but this method will cause the outer wall of the hole to have no insulation or leave bolt holes in the outer wall, whic...

AI Technical Summary

Problems solved by technology

[0002] In the construction process of high-rise shear wall structures, the erection of scaffolding generally chooses the cantilever method. The wall structure of force wall, insulation board and outer leaf board is integrated. Therefore, there are certain difficulties in how to seal and repair the external insulation structure for the holes left on the assembled outer wall.

The existing method is to directly seal the entire hole with fine stone concrete, but this method will cause the outer wall of the hole to have no insulation or leave bolt holes in the outer wall, which will easily form a cold bridge in this part, and the waterproof effect will be significantly reduced

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